C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

alternator volts

Old Oct 29, 2011 | 12:56 PM
  #1  
hotparts's Avatar
hotparts
Thread Starter
Instructor
10 Year Member
 
Joined: Jun 2004
Posts: 211
Likes: 0
From: Salzburg Austria
Default alternator volts

Hi guys,

how much volts must the alternator bring at 1000 rpm.
Is 13,3 volts not enough at cruising?
Could it be thet the fuel pump brings not enough fuel pressure when i have only about 13 volts?
Reply
Old Oct 29, 2011 | 01:27 PM
  #2  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

13.3V is low at the alternator but the fuel pump should still be ok at that voltage.
Reply
Old Oct 29, 2011 | 01:48 PM
  #3  
hotparts's Avatar
hotparts
Thread Starter
Instructor
10 Year Member
 
Joined: Jun 2004
Posts: 211
Likes: 0
From: Salzburg Austria
Default

Originally Posted by lionelhutz
13.3V is low at the alternator but the fuel pump should still be ok at that voltage.
What should be the right voltage?
Can i let the alternator repair or could it also have this voltage when the battery is nearly empty?
Reply
Old Oct 29, 2011 | 05:39 PM
  #4  
lionelhutz's Avatar
lionelhutz
Race Director
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
Default

How are you reading the voltage?

Is the battery fully charged?

Peter
Reply
Old Oct 29, 2011 | 07:45 PM
  #5  
dgrant3830's Avatar
dgrant3830
Tech Contributor
10 Year Member
 
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
Default

Using a meter, at the battery with the engine running, you should see 13.8-14.3. With the engine off, you should see at least 12.5 or your battery is either done or discharged.
Reply

Get notified of new replies

To alternator volts



Thread Tools
Search this Thread

All times are GMT -4. The time now is 03:18 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE